| Quick Specs: Yamaha YZF-R 125 (RE06) | |
|---|---|
| Production Years | 2014–2018 |
| Engine Oil | SAE 10W-40 JASO MA (1.0 L) |
| Spark Plug | NGK CR9E |
| Battery | YTZ6V |
| Front Tire | 100/80-17 M/C 52H |
| Rear Tire | 130/70-17 M/C 62H |
| Tire Pressure (F/R) | 1.75 bar / 2.00 bar |
Engineering Highlight: The RE06 generation marks a pivotal moment in A1-class engineering. Unlike its predecessor, the RE06 introduced a high-specification 41mm upside-down (USD) front fork and a radial-mount front brake caliper—features historically reserved for 600cc and 1000cc supersports. This move solidified the YZF-R 125 as the most technologically advanced entry-level sportbike of its era.
Technical Review: The RE06 Evolution
The Yamaha YZF-R 125 RE06 (2014–2018) represents the second major iteration of the iconic R-series learner bike. At its core is the liquid-cooled, 4-stroke, SOHC, 4-valve single-cylinder engine. While the power remains capped at the 11kW (15HP) limit for licensing regulations, the RE06 update focused heavily on fuel injection efficiency and chassis dynamics.
The Deltabox frame remains a standout feature, providing a level of rigidity that allows for precise cornering. The inclusion of a redesigned linkage-type rear suspension and the aforementioned USD forks significantly improved damping characteristics over the first-generation RE03 model.
Maintenance Guide & Vital Fluids
To maintain the high-revving nature of the RE06 engine, strict adherence to maintenance intervals is required. The engine utilizes a relatively small oil capacity, making the quality of the lubricant critical for heat dissipation.
1. Lubrication System
The RE06 requires 1.0 liter of SAE 10W-40 motor oil. It is imperative to use oil meeting the JASO MA specification to ensure the wet clutch does not slip. MotoSpecsLab recommends checking the oil level every 500km via the inspection window.
2. Ignition & Electrical
The NGK CR9E spark plug is the standard fitment. Ensure the electrode gap is maintained between 0.7–0.8 mm. The electrical system is powered by a YTZ6V battery; given the bike’s high-compression ratio, a healthy battery is essential for reliable cold starts.
3. Chassis & Tires
Handling is sensitive to tire pressure. The factory-recommended 1.75 bar (25 psi) front and 2.00 bar (29 psi) rear provide the optimal contact patch for the 100/80-17 and 130/70-17 tires. Deviating from these pressures can result in sluggish turn-in or premature tire wear.
MotoSpecsLab Verdict
The Yamaha YZF-R 125 RE06 is a masterclass in “big bike” feel for the A1 category. Its build quality and componentry reflect Yamaha’s Racing DNA. For owners, the RE06 is a rewarding machine that, when maintained with precision, offers unrivaled reliability and class-leading performance.